178818588

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{2111}}^1$

素因数の和:2315

約数の個数: 72

約数和(自身を含む): 489705216

約数和(自身を除く): 310886628

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 181, 234, 362, 468, 543, 724, 1086, 1629, 2111, 2172, 2353, 3258, 4222, 4706, 6333, 6516, 7059, 8444, 9412, 12666, 14118, 18999, 21177, 25332, 27443, 28236, 37998, 42354, 54886, 75996, 82329, 84708, 109772, 164658, 246987, 329316, 382091, 493974, 764182, 987948, 1146273, 1528364, 2292546, 3438819, 4585092, 4967183, 6877638, 9934366, 13755276, 14901549, 19868732, 29803098, 44704647, 59606196, 89409294, 178818588]

約数ペア:

[(1, 178818588), (2, 89409294), (3, 59606196), (4, 44704647), (6, 29803098), (9, 19868732), (12, 14901549), (13, 13755276), (18, 9934366), (26, 6877638), (36, 4967183), (39, 4585092), (52, 3438819), (78, 2292546), (117, 1528364), (156, 1146273), (181, 987948), (234, 764182), (362, 493974), (468, 382091), (543, 329316), (724, 246987), (1086, 164658), (1629, 109772), (2111, 84708), (2172, 82329), (2353, 75996), (3258, 54886), (4222, 42354), (4706, 37998), (6333, 28236), (6516, 27443), (7059, 25332), (8444, 21177), (9412, 18999), (12666, 14118)]